Audio speaker



FIG. 1 is a top view of an audio speaker, showing my new design.

FIG. 2 is a left side view thereof.

FIG. 3 is a front view thereof.

FIG. 4 is a right side view thereof.

FIG. 5 is a rear view thereof.

FIG. 6 is a bottom view thereof; and,

FIG. 7 is the right side view in a slanted position.

The remaining views of the audio speaker in slanted position not shown in the drawings or described in the specification form(s) no part of the claimed design. 

The ornamental design for an audio speaker, as shown and described. 